|
|
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
![Audiometry exam being administered to a young child who is wearing the ear phones through which soun](https://biology-forums.com/gallery/47/medium_14755_27_08_12_12_28_12_82082287.jpeg)
![Nephrolithiasis. Stones, or calculi, may form in several areas within the urinary tract. When they f](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_57_96641254.jpeg)
![Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_57_966651.jpeg)